Pneumatic cleaning apparatus.



G. W. E. BUEGEL & J. YC. LEWIS.

PN EUMATIG CLEAN ING APPARATUS.

APPLIOATIO-N FILED OUT. 31| 1908.

Patented May 18, 1909.

2 SHEETS-SHEET 2.

1 elli cient device UNITED sTATEs PATENT oEEIoE.

CARL W. E. BOEGEL, OF LIMA, AND JAMES C. LEWIS, VOF MANSFIELD, OHIO; SAID LEWIS ASSIGNOR TO SAID BUEGEL.

rmiuuarrc CLEANING Armures'.

Specification of Letters Patent. l

" Patented May 1s, 190e.

Application led October 31, 1908. SerialfNmAGOS.

To all whom it may1 concern:

Be it' known that we, (ARL W. E. Bonomi andy JAMEs C. LEWIS, citizens of the United States, residing, respectively, infltima, in'the county of Allen and State of hio, and in` Mfanslield, inI the county of Richland and State ot Ohio, have inventedcertainnew and useful Improvements inPneumati'e Cleaning Apparatus,I of which the following is aspeciiication.l

(Dur invention relates to' cleaning appara'- tus,and' has for its object the provision ot anl for removing dust from surfaces of Walls or floors without injuring the covering' of the surface, such, for instance, as pager onl a wall. 4

ur invention consists in an'air nozzle irovided'with'separate'inlets, ,or series ofi ets, in combinationl with' a brush, the' lbers of which are situated intermediate'of the air in'- lets or seriesof air inletsfand extendi beyond the limit of t'he nozzle to make contact withf the'surface to be'cleaned- (.)ur .invention also consists in the` parts and in the details of construction andf arrangement of parts as will hereinafter be more fully described andf claimed.

In the drawings: Figure 1 is a perspectivel view, illustrating the use of our improved'a paratus in cleaning the surface of a wall.

ig 2 is a!- perspective View, illustrating the use of our improved apparatus in cleaning awall where two of its surfaces meet at an angle, as in the corner of a room.` Fig.. 3 is a' cross section through the middle of the' de'- vice on a line corresponding to the linewx of Fig. 5. Fig. 4l is a cross sectionf also on a' line corresponding to the line fr*a' of Fig. 5, illustrating the apparatus inra position corre'- sponding to that inf which' the device isillus-r trated as being iny Fig. 1 of the drawings. Fig. 5 is a longitudinatsectional'elevationofl part of thel apparatus, the section` beingi thro ughthe'casing on'a line corresponding to the line y-y of Fig'. 3. Fig'. is alongitudi nal sectional elevation,. also on a= linecorre-- sponding to theline g/hy of Fig'. '3, illustrating aF modification of the apparatus.

As we prefer tol construct our improved4 pneumatic cleaning apparatus, an elongated casing'l semi-cylindrical inv its upper part, andl with walls .2 slightly converging' dowmk ward from thel terminations of saidA upper mrt, and having closed ends and an o )en bottom of elongated` rectangular formation.

The brush, asillustrated, consists-in .thenarrow elongated back 3' and bristles 4 arranged instworows of tufts throughout the/length of the back.V As show-n, the tuilts of one series are inclined' toward the tufts of the other series, so as to interminglethe lower separate ends of the diverging bristles, as iswell known in the construction of brushes. Brush supports 5' andf 6 are provided, these supports being approximately equal in len th- Uo'the back 3 of the brush'but being of suc 'Widthmelative tothe size of the casing lv and the length of the bristles 4- of the brush, that when the lower edge of oneof the-sup` port-s 5 or 6 is approximately coincident with the lower'edge'of one of thewalls 2 ofthe casing 1, around thel open bottom, andthe upper side of the back 3'ofl the brush-is approximately coincident with' the upper edge of saidl supports 5 0r6', the bristles 4 of the brush wilLeXtend' past thelimit of the nozzle formed b v the casing 1 and thebrush and its supports a suilicient distance to allow the bristles to make operative contact with the surface to be cleaned, as is best illustrated in Fig.' 4' of' the drawings. l/Vhen. the brush supports are'thu'sattached tothe walls ofthe casingand to the back of the brush, a space 7 will be' dened' in the interior of the casing, extending downfalong the converging walls 2 at the sides and terminating where4 the brush supports are attached to the walls.

An outlet pipe 8 isT rovidedon the upper part of tlie'cas1ng,lea ing' from thisspace 7, and this outlet pipe' is alsoa'dapted to form the handle, or the means for attaching the handle, for the ap nnfatus. 'llhe handle which is attachedI willi, of' course, be in the fcrmf of a tube' or pipe, adapted; to conduct the air from'the apparatus. Also', wheng the brush supports 5 and'- are in' position', ancth'er space 9 will bedefned around? the bristles 4 within the' interior of' the' casing', this spacel being: of a' width andi length equal to the width' an'd length ofl the back 8 of* the brush. As ameans et communicationX be'- tween the-'s ace' 9:'around the bristles of the brush' and t' Iespace 7 from which the outlet pipe 8 leads, the brush supports .5and' 'are n'ovided with transverse openings leading lron one'ofsaid-s aces to't'he other. openings may bee bngatedf slots 10, only one of' which' is provided in each bruslr support, as illustrated' in' Figs. 2, 3, 4l and 5'of the drawings, or'tliey may be circular openings Those a number of whichare provided in each of .the brush supports, Such circular openingsare illustrated in Fig` 6 of thedrajvmgs.

In either case it is desirable that the lower inner corners of the brush supports 5 and 6v adjacent to the bristles 4 of the brush be beveled throughout their lengths-,as at 11, and

f ings 12 may be clrcular in cross section, and

where provided in combination with the elongated slots 10 may be placed as close together as the nature of the material oi which the brush supports 5 and 6 are colnposed will permit. v l

Preferably, the brush supports 5 and 6 are of wood, as is also lthe back 3 of the brush, the brush supports and the vback being secured together by means of bolts 13 passing throu h them and havingl the heads and nuts sunk elow the-outer surfaces of the brush sup orts to permit the structure composed of t 1e brush supports and. the brush to be readily inserted through the open bottom of the casing 1. When this structure has thus been inserted into the casing, it is secured to the walls 2 of the casing by means of screws 14 passing transversely through the walls near theirlower edges into the brush supports near their lower edges. The casing 1 and its outlet pipe 8 are preferably constructed of tin plate.

Constructed as above described, the entire Y apparatus may be lcomparatively light and strong, its lightness being yarticularly desirable where it is used for c eaning walls or ceilings. In order to prevent the abrasion of the surfaces which are being cleaned, the lower edges of the brush sup orts 5 and 6 are provided with longitudina ly extending grooves 15 in which is secured a cushion 16. Transverse grooves 17 are provided in the lower edges of the 'brush supports 5 and 6 near their ends, so that the cushion 16 may extend around from the longitudinally extending grooves 15 transversely from one of the brush supports to the other, past the ends of the series of tufts of bristles in the brush. Thus the cushion 16 may be con; tinuous in the form of an endless cord, and being of sufficiently large cross section relative te the size of cross section of the grooves 15 and 17 and to their distance from the outer sides and ends of the supportsthey may be made to extend outwardl kpast the lower edges of the casing 1, as ilustrated. Thus, when the apparatus is used, the only parts which can come into contact with the surface being cleaned are the'bristies 4 and 'the cushion 16 as illustrated in Fig. 4 of the tion that it` will extend at the pro er angle relative to the direction of extent o the bristles of the brush and the parts in combination therewiththat the apparatus may be most conveniently applied when using the outlet pipe 8, or a continuation thereof, for the andle of the apparatus. It will also be Vnoted that when the apparatus is used and ythe ends of the bristles 4 are brou ht into contact with the wall, the bristles wi 1 be distorted laterally of the apparatus and their entire mass drawn over against the inner side of one lof the brush supports 5 or 6, as against the brush support 5 in ig. 4 of the drawings, making contact with the surface of the beveled part 11 of the brush support and closing v the communication between the exterior of the apparatus and the pa'rt of the space 9 adjacent to said brush support. Thus, the entire action of the air circulating ap aratus is concentrated on the opposite si e of the brush, adjacent to the bristles where the make contact withthe surface tobe cleane Thus, dust or dirt lodged and carried y the bristles will also be acted upon by the air and will be carried from the bristles along with the other particles acted upon by the air into the space 9, and through the openings 10 and 12 into the space7 .in the casing 1, and thence outward through the outlet pipe 8 to a proper receptacle, which, not forming a art oi this invention, need not herein be il ustrated or dedescribed Likewise, the apparatus for inducing a current of air inward through the nozzle need not be herein illustrated or described, since it also does not form part of this invention.

We claim: 1. In a pneumatic cleaning apparatus, an

particles which are dis-v air nozzle comprising a casing having an outlet, brush supports mounted within said casing, a brush supported by the brush supports within said casing, the brush supports, brush back and casing defining a space between said parts adjacent to and communieating with the outlet and said supports and brush back defining a space adjacent to the bristles of the brush, each brush support being provided with an openingiorming a communication between said-spaces either of which openings isadapted to be partially closed by the bristles of the brush when said brush is brought into contact with the surface to be cleaned, substantially as and for the purposes set forth.

. cater etween the two spaces, substantially as and for the purposes set forth. *l

3. In pneumatic cleaning apparatus, an air nozzle comprising an elongated casing of semicylindrical closed formation in its upper part and with walls converging downward fromthe termination of said upper art, and having closed ends and an open bottom of elongated rectan lar-formation, an outlet pipe mounted on t e upper v art, a brush comprising a narrow elongate back and bristles arranged therein, brush supports secured to the converging walls of the casing and -to the back of the brush, said supports, back of brush and the casing defining a space adjacent to and communicating with the outletand said supports and brush back defining another space adjacent to the bristles of the brush and communicating with the exterior of the nozzle, the brush supports being provided with openings forming a communication between said spaces, either of which openings is adapted to be partially closed by the bristles of the hrush when they'are brought into contact with the surface to be cleaned, substantially' as and for the purposes set forth.

4. In pneumatic cleaning apparatus, an an' nozzle comprising an elongated casing of semi-cylindrical closed formation in its upper part and with walls converging downward from the termination of said upper part,.and having closed ends and an open ottoni of elongated rectangular formation, an outlet pipe mounted on the upper part, a brush comprising a narrow elongated back and bristles arranged therein, and brush supports secured to the converging walls of the casing and' to the back of the brush, whereby a spaee is defined in said casing adjacent to and communicating with the outlet plpe, said brush supports having extensions adjacent to the conver 'ng walls of the casing, said brush back an extensions de nmg another space adjacent to the bristles of'the brusli' and communicating with the gexterior of the nozzle, the brush supports being provided with openings forming a communication between said spaces and being beveled on their lower inner sides throughout their length with which beveled parts the bristles of the brush are adapted to make contact and also having openings leading from the beveled parts to the openings which communicate with the two spaces, substantially as andv for the purposes set forth.

5. In pneumatic cleaning apparatus, an air nozzle comprising anV elongated casing of semi-cylindrical closed formation in its upper part and with walls convergin downward from the terminations of sai upper part and yhaving closed ends and an open bottom of elongated rectan lar formation, an outlet pipe mounted on t e upper part, a brush comprising a narrow elongated ,back

and bristles arran ed therein, and brush su -1 a space is defined adjacent to and'commu-v nicating with the outlet between said supports and brush, and said casing, said supports defining with the back of the brush another space adjacent to the bristles of the "blush and communicating with the exterior of the nozzle, the brush supports being provided with openings forming a communication between said spaces and being beveled on their lower inner sides throughout their length with which beveled parts the bristles of the brush are adapted to make contact, and said brush supports having openings vleading from the beveled parts to the openings which communicate with the two spaces, and a cushion mounted on the lower edges of the brush supports extending throughout their entire length and extending transversely from oneend of the brush supports to the other at the ends of the brush, said bristles and said cushion being adapted to make contact with the surface to be cleaned, substantially as and for the purposes set forth.

l CAR-L W. E. BUEGEL.

JAMES C. LEWIS. Witnesses: W. J. 'BissMAN I. S. DoNNnLL,

S. F. OTTINGER. 

